[PATCH v6 00/26] IB/Verbs: IB Management Helpers

[Michael Wang <yun.wang@profitbricks.com>]

Since v5:
  * Thanks to Ira, Devesh for the review and testing :-)
  * Thanks for the comments from Steve, Tom, Jason, Hal, Devesh, Ira,
    Liran, Jason, Dave :-) Please remind me if anything missed :-P
  * Trivial fix for 4#
  * Drop the reform on acquiring link-layer in 9#
  * Drop cap_ipoib()

There are plenty of lengthy code to check the transport type of IB device,
or the link layer type of it's port, but actually we are just speculating
whether a particular management/feature is supported by the device/port.

Thus instead of inferring, we should have our own mechanism for IB management
capability/protocol/feature checking, several proposals below.

This patch set will reform the method of getting transport type, we will
now using query_transport() instead of inferring from transport and link
layer respectively, also we defined the new transport type to make the
concept more reasonable.

Mapping List:
		node-type	link-layer	old-transport	new-transport
nes		RNIC		ETH		IWARP		IWARP
amso1100	RNIC		ETH		IWARP		IWARP
cxgb3   	RNIC		ETH		IWARP		IWARP
cxgb4   	RNIC		ETH		IWARP		IWARP
usnic   	USNIC_UDP	ETH		USNIC_UDP	USNIC_UDP
ocrdma  	IB_CA		ETH		IB		IBOE
mlx4    	IB_CA		IB/ETH		IB		IB/IBOE
mlx5    	IB_CA		IB		IB		IB
ehca    	IB_CA		IB		IB		IB
ipath   	IB_CA		IB		IB		IB
mthca   	IB_CA		IB		IB		IB
qib     	IB_CA		IB		IB		IB

For example:
	if (transport == IB) && (link-layer == ETH)
will now become:
	if (query_transport() == IBOE)

Thus we will be able to get rid of the respective transport and link-layer
checking, and it will help us to add new protocol/Technology (like OPA) more
easier, also with the introduced management helpers, IB management logical
will be more clear and easier for extending.

Highlights:
    The patch set covered a wide range of IB stuff, thus for those who are
    familiar with the particular part, your suggestion would be invaluable ;-)

    Patch 1#~15# included all the logical reform, 16#~25# introduced the
    management helpers, 26#~27# do clean up.

    we appreciate for those one who have the HW willing to provide Tested-by :-)

    Doug suggested the bitmask mechanism:
	https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23765.html
    which could be the plan for future reforming, we prefer that to be another
    series which focus on semantic and performance.

    This patch-set is somewhat 'bloated' now and it may be a good timing for
    staging, I'd like to suggest we focus on improving existed helpers and push
    all the further reforms into next series ;-)

    We now have a repository based on latest infiniband/for-next with this
    series applied:
        git@github.com:ywang-pb/infiniband-wy.git

Proposals:
    Sean:
	https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23339.html
    Doug:
	https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23418.html
	https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23765.html
    Jason:
	https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23425.html

Michael Wang (26):
  IB/Verbs: Implement new callback query_transport()
  IB/Verbs: Implement raw management helpers
  IB/Verbs: Reform IB-core mad/agent/user_mad
  IB/Verbs: Reform IB-core cm
  IB/Verbs: Reform IB-core sa_query
  IB/Verbs: Reform IB-core multicast
  IB/Verbs: Reform IB-ulp ipoib
  IB/Verbs: Reform IB-ulp xprtrdma
  IB/Verbs: Reform IB-core verbs
  IB/Verbs: Reform cm related part in IB-core cma/ucm
  IB/Verbs: Reform route related part in IB-core cma
  IB/Verbs: Reform mcast related part in IB-core cma
  IB/Verbs: Reserve legacy transport type in 'dev_addr'
  IB/Verbs: Reform cma_acquire_dev()
  IB/Verbs: Reform rest part in IB-core cma
  IB/Verbs: Use management helper cap_ib_mad()
  IB/Verbs: Use management helper cap_ib_smi()
  IB/Verbs: Use management helper cap_ib_cm()
  IB/Verbs: Use management helper cap_iw_cm()
  IB/Verbs: Use management helper cap_ib_sa()
  IB/Verbs: Use management helper cap_ib_mcast()
  IB/Verbs: Use management helper cap_read_multi_sge()
  IB/Verbs: Use management helper cap_af_ib()
  IB/Verbs: Use management helper cap_eth_ah()
  IB/Verbs: Clean up rdma_ib_or_iboe()
  IB/Verbs: Cleanup rdma_node_get_transport()

 drivers/infiniband/core/agent.c              |   2 +-
 drivers/infiniband/core/cm.c                 |  20 +-
 drivers/infiniband/core/cma.c                | 282 ++++++++++++---------------
 drivers/infiniband/core/device.c             |   1 +
 drivers/infiniband/core/mad.c                |  43 ++--
 drivers/infiniband/core/multicast.c          |  12 +-
 drivers/infiniband/core/sa_query.c           |  30 +--
 drivers/infiniband/core/ucm.c                |   3 +-
 drivers/infiniband/core/ucma.c               |  25 +--
 drivers/infiniband/core/user_mad.c           |  26 ++-
 drivers/infiniband/core/verbs.c              |  31 +--
 drivers/infiniband/hw/amso1100/c2_provider.c |   7 +
 drivers/infiniband/hw/cxgb3/iwch_provider.c  |   7 +
 drivers/infiniband/hw/cxgb4/provider.c       |   7 +
 drivers/infiniband/hw/ehca/ehca_hca.c        |   6 +
 drivers/infiniband/hw/ehca/ehca_iverbs.h     |   3 +
 drivers/infiniband/hw/ehca/ehca_main.c       |   1 +
 drivers/infiniband/hw/ipath/ipath_verbs.c    |   7 +
 drivers/infiniband/hw/mlx4/main.c            |  10 +
 drivers/infiniband/hw/mlx5/main.c            |   7 +
 drivers/infiniband/hw/mthca/mthca_provider.c |   7 +
 drivers/infiniband/hw/nes/nes_verbs.c        |   6 +
 drivers/infiniband/hw/ocrdma/ocrdma_main.c   |   1 +
 drivers/infiniband/hw/ocrdma/ocrdma_verbs.c  |   6 +
 drivers/infiniband/hw/ocrdma/ocrdma_verbs.h  |   3 +
 drivers/infiniband/hw/qib/qib_verbs.c        |   7 +
 drivers/infiniband/hw/usnic/usnic_ib_main.c  |   1 +
 drivers/infiniband/hw/usnic/usnic_ib_verbs.c |   6 +
 drivers/infiniband/hw/usnic/usnic_ib_verbs.h |   2 +
 drivers/infiniband/ulp/ipoib/ipoib_main.c    |  15 +-
 include/rdma/ib_verbs.h                      | 169 +++++++++++++++-
 net/sunrpc/xprtrdma/svc_rdma_recvfrom.c      |   4 +-
 net/sunrpc/xprtrdma/svc_rdma_transport.c     |  47 ++---
 33 files changed, 503 insertions(+), 301 deletions(-)

-- 
2.1.0